<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="UTF-8" />
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
    <title>Document</title>
    <script type="text/javascript" src="../JS/B.js" defer="defer"></script>
    <link rel="stylesheet" href="./index.css" />
  </head>
  <body>
    <h1>页面B</h1>
    <div class="parent">
      <div class="child">
        <ul>
          <li><input type="button" id="go_back" value="回退" /></li>
          <li><input type="button" id="go_a" value="Go to A" /></li>
          <li><input type="button" id="go_c" value="Go to C" /></li>
          <li><input type="button" id="go_forward" value="前进" /></li>
        </ul>
      </div>
    </div>
  </body>
</html>
